Baek, Se-Woong Noh, Jonghyeon Lee, Chun-Ho Kim, BongSoo Seo, Min-Kyo Lee, Jung-Yong 2024-01-20T12:32:26Z 2024-01-20T12:32:26Z 2021-09-05 2013-04-25 2045-2322 https://pubs.kist.re.kr/handle/201004/128148 In this report, plasmonic effects in organic photovoltaic cells (OPVs) are systematically analyzed using size-controlled silver nanoparticles (AgNPs, diameter: 10 similar to 100 nm), which were incorporated into the anodic buffer layer, poly(3,4- ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS). The optical properties of AgNPs tuned by size considerably influence the performance levels of devices. The power conversion efficiency (PCE) was increased from 6.4% to 7.6% in poly[N-9-hepta-decanyl-2,7-carbazolealt-5,5-(4,7-di-2-thienyl-2,1,3-benzothiadiazole)] (PCDTBT):[6,6]-phenyl C-71-butyric acid methyl ester (PC70BM) based-OPVs and from 7.9% to 8.6% in polythieno[3,4- b] thiophene/benzodithiophene (PTB7):PC70BM based-OPVs upon embedding the AgNPs. The external quantum efficiency (EQE) was significantly enhanced by the absorption enhancement due to the plasmonic scattering effect. Finally, we verified the origin of the size-dependent plasmonic forwarding scattering effect of the AgNPs by visualizing the scattering field with near-field optical microscopy (NSOM) and through analytic optical simulations. English NATURE PUBLISHING GROUP COLLOIDAL SILVER DISPERSIONS POLYOL PROCESS METAL NANOPARTICLES TANDEM POLYMER LIGHT EFFICIENCY ENHANCEMENT ABSORPTION MECHANISM DESIGN Plasmonic Forward Scattering Effect in Organic Solar Cells: A Powerful Optical Engineering Method Article 10.1038/srep01726 1 SCIENTIFIC REPORTS, v.3 SCIENTIFIC REPORTS 3 scie scopus 000318004300001 2-s2.0-84877735188 Multidisciplinary Sciences Science & Technology - Other Topics Article COLLOIDAL SILVER DISPERSIONS POLYOL PROCESS METAL NANOPARTICLES TANDEM POLYMER LIGHT EFFICIENCY ENHANCEMENT ABSORPTION MECHANISM DESIGN Organic solar cels Plasmonic scattering Solar energy and photovoltaic technology Nanoparticles Nanophotonics and plasmonics Molecular electronics